Decades ago I purchased a printed DIY fireworks guide from skylighter.com, it looks like they've since made a lot of that information freely available on their

Decades ago I purchased a printed DIY fireworks guide from skylighter.com, it looks like they've since made a lot of that information freely available on their web site: https://www.skylighter.com/pages/free-homemade-fireworks-projects-and-pyrotechnic-formulas https://www.skylighter.com/pages/free-homemade-fireworks-pro...